Bottle for retaining blood



FIG. 1 is a top front perspective view of a bottle for retaining blood showing my new design;

FIG. 2 is a side elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top front perspective view of a modified embodiment of the bottle illustrated in FIG. 1; and

FIG. 6 is a broken plan view thereof.

The broken lines are shown for illustrative purposes only. 

The ornamental design for a bottle for retaining blood, substantially as shown. 